Ammo and Oxygen

46 achievements

Ultra Rare×7

Very Rare×12

Rare×17

Uncommon×7

Common×3

About Ammo and Oxygen's achievements

Ammo and Oxygen has 46 Steam achievements, 7 of them ultra-rare — unlocked by under 5% of players. The rarest is "Engineering master", earned by just 0.2% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

0.2%

of players earned "Engineering master"

🗺️ Community guides & walkthroughs

Community Ratings

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Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Ammo and Oxygen achievements

46 achievements

Engineering master

Collect all Mega Weapon recipes

Ultra Rare0.2%

I understand now...

Unlock all story fragments in the library

Ultra Rare0.2%

Throwing money around

Spend 9999 credits

Ultra Rare1.3%

Platinum credit card

Spend 99 keycards

Ultra Rare2.3%

Escape

Leave the terrifying planet

Ultra Rare2.4%

Doctor! 9-1-... what next?

Collect 91 aid kits

Ultra Rare3.1%

The burden of responsibility

Reach the distorted reality

Ultra Rare4.2%

???

Hidden achievement — tap Reveal secrets to spoil

Very Rare5.5%

Here's the answer. What's the question?

Achieve exactly 42 kills on the stats screen

Very Rare6.0%

Collect 2000 energy

Very Rare6.6%

Warm and dry

Escape the Swamps

Very Rare8.0%

???

Hidden achievement — tap Reveal secrets to spoil

Very Rare9.6%

Annihilation

Kill 1000 monsters

Very Rare10.8%

Multi-tool box

Collect 3000 spares

Very Rare11.0%

Brain jar collection

Collect 5000 DNA samples

Very Rare12.6%

Energy master

Collect all energy weapons

Very Rare12.7%

???

Hidden achievement — tap Reveal secrets to spoil

Very Rare13.4%

Modified

Collect 5 equipment items in one run

Very Rare14.1%

I don't even remember what I used to be

Collect 10 power-ups in one run

Very Rare14.4%

AAA

Collect 400 energy

Rare15.3%

Cyberimplant

Upgrade any improvement to the maximum level

Rare16.0%

Main weapon compartment unlocked

Collect all ranged weapons

Rare17.5%

???

Hidden achievement — tap Reveal secrets to spoil

Rare17.9%

I'm rich!

Collect 1000 credits in one run

Rare18.5%

???

Hidden achievement — tap Reveal secrets to spoil

Rare21.3%

???

Hidden achievement — tap Reveal secrets to spoil

Rare22.4%

Time for some experiments

Unlock the Laboratory

Rare22.6%

Why even bother with ammo

Kill 50 monsters in melee combat

Rare23.0%

Adaptation was successful

Survive 3 nights

Rare23.6%

First level access

Spend 10 keycards

Rare24.3%

Power is in the Energy

Unlock the Technology Room

Rare24.9%

???

Hidden achievement — tap Reveal secrets to spoil

Rare27.9%

I'm coming to get the rest of you, alien bastards

Inflict 9999 damage

Rare27.9%

Melee weapon compartment unlocked

Collect all melee weapons

Rare28.1%

The killing machine

Inflict 3000+ damage in one run

Rare28.7%

Under the microscope

Collect 1000 DNA samples

Rare28.7%

This is more comfortable. Where's the pillow?

Use the night skip capsule

Uncommon33.1%

Jar of nails

Collect 500 spares

Uncommon33.2%

I like to change

Collect 5 power-ups in one run

Uncommon34.8%

Let's go shooting

Unlock the Shooting Gallery

Uncommon35.8%

Pistol compartment unlocked

Collect all pistols

Uncommon35.9%

Don't stop...

Complete 3 levels in one run

Uncommon41.3%

Not a scratch

Complete any level without taking damage

Uncommon44.4%

Camping enthusiast

Survive a night outdoors

Common53.4%

Gunfighter

Kill a monster with the last bullet in the magazine

Common64.3%

Unbelievable. I got out!

Step onto the surface of the planet

Common77.4%